Written by

USA TODAY

Thanks to the Internet, women who produce an abundant supply of breast milk and those in need of it for their babies have more opportunities than ever to connect. But a first-of-its-kind study finds high levels of harmful bacteria and contamination in breast milk purchased via the Web.

Researchers' analysis of 100 samples of breast milk bought on a public milk-sharing website found three in four samples contained either high levels of bacterial growth overall or contained disease-causing bacteria, including fecal contamination.